Ringme Duke Mobile Phone Feature Phone with Dual SIM Card, Camera, Auto Call Recording with Torch (Red, 1.77 inch Big screen, 3000mAh Big Battery)Ringme Duke Mobile Phone. Box Contents Mobile Phone, Battery, Charger. SIMs Dual Sim. SIM Size Normal. Other Features Call Features, Screen Size 1. 77 inch, Display Type QVGA, Connectivity GSM. Extra Features Wireless FM Radio,. Torch, Connectivity Bluetooth. Battery Capacity: 3000 mAH. Battery Type Li ion Replaceable Battery. Talk Time Up to 15 hours Standby Time Up to 240 hours. Dimensions HxWxD (mm) 115 x 50 x 12 mm. Warranty: 90 Days